Place meat on flat surface and pound with mallet to flatten. Sprinkle meat on both sides with salt, pepper and paprika.,Heat butter in skillet.,Brown meat over high heat for about 3 minutes on each side.,Transfer meat to platter.,Pour excess fat from skillet and cook onion until wilted.,Add wine and stir to dissolve brown particles.,Add chicken broth and simmer about 5 minutes.,Remove from heat and stir in sour cream.,Pour sauce over meat and sprinkle with parsley.,______